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[Morbidity and mortality in low-birth-weight infants (1,000 g, or less (author's transl)]
Insights
This study on low-birth-weight infants found that being small for gestational age improved survival rates. However, overall mortality remained high due to factors like sepsis and respiratory distress.
Area of Science:
- Neonatalogy
- Perinatology
- Pediatric Critical Care
Context:
- Evaluation of 50 low-birth-weight infants (<= 1,000g) admitted to an Intensive Care Unit between 1972-1974.
- Comparison of obstetrical data, maturity, and morbidity to identify survival-influencing factors.
- Analysis focused on factors predisposing to survival in extremely low birth weight neonates.
Purpose:
- To investigate factors influencing survival in low-birth-weight infants.
- To compare obstetrical data, maturity, and morbidity in this vulnerable population.
- To identify risk factors for mortality and protective factors for survival.
Summary:
- Significant differences in gestational age, birth weight, and maturity were observed.
- Mortality correlated with low Apgar scores, low admission hematocrit, apnea, respiratory distress, need for resuscitation/ventilation, and septicemia.
- Survival was associated with being small for gestational age, early membrane rupture, and higher admission temperature (>35.5°C axillary).
- Common issues included respiratory distress, apnea, infection, and metabolic disturbances.
- Overall mortality was 76%, reduced to 50% in the small-for-gestational-age group.
- Primary causes of death were sepsis, severe hypoxia, and intracranial hemorrhage.
Impact:
- Highlights the critical impact of gestational age and birth weight on neonatal outcomes.
- Identifies key clinical indicators (Apgar, hematocrit, temperature) and complications (sepsis, hypoxia, hemorrhage) affecting survival.
- Suggests potential areas for targeted interventions to improve outcomes for low-birth-weight neonates.
Abstract:
50 low-birth-weight infants (1,000 g. or less) admitted to an Intensive Care Unit from January 1972 up to December 1974 are evaluated. Obstetrical data maturity and morbidity are compared in order to investigate factors that might predispose survival of these infants. Significant differences in gestational age, birth weight and maturity have been encountered. Mortality rate increases with a low Apgar score at one and five minutes, a low hematocrit an admission, early appearance of apnea, respiratory distress, when ressuscitation was required, need for assisted ventilation and septicemia. Among the factors that improve the rate of survival are: being small for gestational age, early rupture of membranes and temperature on admission above 35.5 degrees (axillary). Problems most frequently encountered were respiratory distress, apnea, infection and metabolic disturbances. Mortality rate was 76%, lowered to 50% among the small for gestational age group. The main causes of death were sepsis, severe hypoxia and intracraneal hemorrhage.